🖼️ Image Tools

JPG to PNG Converter

Convert a JPEG image to PNG locally without sending the source image to a server.

Ready to use · Runs in your browser · No signup

How to use the JPG to PNG Converter

Convert a JPEG image into a PNG file with the same pixel dimensions. The conversion is performed with your browser canvas and does not require an upload.

Convert a browser-decodable JPEG image to PNG locally. The output uses lossless PNG encoding, but conversion cannot recover detail previously discarded by JPEG compression.

The selected image is decoded and processed in the browser. Keep the original until the downloaded output has been opened and checked on the target device.

  1. Choose a JPEG image from your device.
  2. Convert it to PNG locally while retaining the decoded pixel dimensions.
  3. Download the resulting PNG after reviewing its file size.

Last reviewed for accuracy:

Worked examples

Convert a JPEG for a PNG-only workflow

Scenario: A form requires PNG input but the available photo is a JPEG.

Result: The decoded pixels are saved in a verified PNG file for download.

The browser decodes JPEG pixels and re-encodes them as PNG; the tool confirms the produced MIME type before assigning the .png filename.

How the result is produced

Format conversion changes the file encoding, not the underlying visual fidelity. PNG is lossless for the newly decoded pixels, and photographic PNG output is often larger than the JPEG source.

  • JPEG compression artifacts remain visible after conversion
  • PNG can store transparency, but a JPEG source has no transparent pixels to restore
  • The output MIME type is checked before download

Limitations and common mistakes

  • PNG output from a photo may be substantially larger.
  • Color-profile and metadata handling depends on browser decoding and canvas export behavior.

Common questions

Will converting JPG to PNG restore lost quality?

No. PNG prevents additional JPEG-style loss during this export, but it cannot restore detail that was already removed by earlier JPEG compression.

Will converting to PNG improve image quality?

No. It prevents additional PNG-style loss after conversion, but it cannot reconstruct detail the JPEG already removed.